Korea lies in the temperate zone and has four distinct seasons. In late March or early April, the trees burst into leafy splendor to mark the beginning of spring. Mostly warm days can be expected from March to May. By June, the average temperature is over 20oC(68oF). Especially, the citizens of Jeju enjoy perfectly mild and comfortable temperatures year-round. Even though Korea has four distinctive season, the weather in Jeju is not extreme in summer or winter, making it always a good time to visit.
UNESCO World Heritage refers to both cultural and natural heritage sites registered on the World Heritage List. In November 1972, UNESCO adopted the "Convention Concerning the Protection of the World Cultural and Natural Heritage" in the General Conference during its seventeenth session. Under the Convention, the World Heritage committee established a World Heritage List that includes cultural and natural heritage with outstanding value whose conservation is recognized to be in the interest of all humanity. As of December 2016, Korea has eleven cultural heritage sites and one natural heritage site.
Apart from this, UNESCO also has a separate program called 'Memory of the World' and 'Intangible Heritage of Humanity.' In Korea, there are thriteen and nineteen of them respectively.
The 2000s have seen a sharp rise in the popularity of Korean culture, with music and dramas hitting all the right notes. Interest in Korea, triggered by the success of leading Korean dramas and popular music, continues to escalated to include a host of other aspects of Korean culture, such as hangeul (Korean alphabet), hansik (Korean food), hanbok (traditional Korean clothing), hanok (traditional Korean houses), hanji (traditional Korean paper), as well as Korean music. In Korea, the aforementioned six cultural symbols are collectively referred to as "Han Style".